Traveller’s diarrhoea treatment in Railay
You are on the fifth trip to the bathroom, you have a boat booked for tomorrow morning, and you are weighing the tablets from the pharmacy against just riding it out. It affects a large proportion of visitors to Southeast Asia. Traveller’s diarrhoea treatment in Railay comes down to replacing fluid properly and knowing which medication helps and which quietly makes things worse.
What causes it here
Most cases are bacterial, with E. coli the commonest, picked up from food or water carrying organisms your gut has never met. Viruses such as norovirus cause the outbreaks that run through resorts and boats. Parasites like giardia are less common and cause a longer illness with bloating and foul-smelling stools.
On Railay the usual routes are ice, salads rinsed in tap water, fruit peeled hours earlier, and food held warm rather than hot. Everything here arrives by boat, so the cold chain is more variable than on the mainland — worth knowing rather than worrying about.
Rehydration is the treatment
Everything else is secondary, and getting this right prevents most complications.
Oral rehydration salts beat water, soft drinks and sports drinks comfortably. The specific ratio of glucose to sodium is what allows the gut to absorb water actively rather than let it pass through, which is why ORS works when plain water does not.
Sachets are cheap and available. Mix with bottled water, sip steadily, and aim to keep your urine pale. Cola and sports drinks are too sugary and can worsen the diarrhoea by drawing water into the bowel.
When loperamide helps and when it harms
Loperamide slows the gut, which is useful in some circumstances and actively dangerous in others.
It is reasonable for watery diarrhoea with no fever and no blood, and it has a specific and legitimate use here: getting through a boat crossing or a long transfer where no bathroom exists. It buys you function, not recovery.
Do not take it if you have a fever, blood or mucus in the stool, or severe abdominal pain. In those cases the diarrhoea is your body expelling something that needs to leave. Never give it to a young child.
When antibiotics are appropriate
Most cases settle in two to four days without them, and taking antibiotics for every loose stool drives resistance — a real and growing problem in this region — and can prolong how long you carry some bacteria.
They are worth using for moderate to severe illness with fever, for blood in the stool, or when symptoms are not improving after three days. The nurse decides after examining you, and where useful a stool test identifies the organism so the right antibiotic is chosen rather than a broad guess.
Persistent diarrhoea beyond two weeks points towards giardia or another parasite, which needs completely different medication and will not respond to standard antibiotics.
When it is more than a stomach bug
Come in the same day if there is:
- Blood or mucus in the stool
- Fever above 38.5C
- Six or more watery stools in a day
- Dizziness on standing, or barely passing urine
- Severe pain concentrated in one area
- Any diarrhoea in a young child that is not settling
Dehydration is the real danger and in this heat it arrives faster than people expect. If you cannot keep fluids down, an IV drip corrects it within about an hour. See also food poisoning.
Getting back to normal
The gut takes longer to recover than the symptoms suggest. Loose stools for a few days after the infection has cleared are normal and do not mean it has returned.
Temporary lactose intolerance is common afterwards — the enzyme that digests milk sugar is made by cells at the tips of the gut lining, which are exactly the cells damaged. Avoiding milk for a week or two often clears lingering bloating that people assume is a second infection.
Reintroduce food gradually and go easy on alcohol and rich food for a few days. If symptoms return after a clear period, or bloating and foul-smelling stools persist beyond two weeks, come back — that pattern suggests a parasite rather than a relapse. And be realistic about climbing: two days of fluid loss leaves you weaker than you feel, and the walk-in will tell you before the route does.
Frequently asked questions
How much does treatment cost?
A consultation with rehydration advice and anti-nausea medication is inexpensive. Stool testing and IV fluids cost more and are quoted before starting.
Should I stop eating?
No. Eat plain food when you feel able — rice, toast, bananas, clear soup. Starving yourself slows recovery of the gut lining.
Can I still take the boat to Ao Nang?
If you are dehydrated or feverish, get seen first. If it is simple watery diarrhoea with no fever, loperamide is a reasonable way to make a crossing survivable.
Can a doctor come to me?
Yes. A doctor resort visit covers Railay West, Railay East, Phra Nang and Tonsai.
How do I avoid it?
Bottled or filtered water including for teeth, food that is hot and freshly cooked, peel your own fruit, and wash your hands before eating. Hand hygiene prevents more cases than avoiding street food.
Why do I still feel bloated a week later?
Usually temporary lactose intolerance after gut infection. Cut out milk for a week or two. If it does not settle, come back — that pattern can indicate a parasite.
A nurse-led clinic, part of the Takecare network
Takecare Clinic Railay is staffed by experienced English-speaking nurses, and works together with Doctor Ao Nang Takecare Medical Clinic in Ao Nang. The two clinics share doctors, records and treatment plans, so a doctor is involved whenever one is needed — reviewing a case, prescribing, or coming over to Railay — and care started on the peninsula continues without repetition if you cross to the mainland. It also means a second clinical opinion is a phone call away rather than a boat ride.
Come in, or we come to you
Takecare Clinic Railay is open 8am–10pm daily on Railay, and reachable 24 hours by phone, WhatsApp and Line — so if something happens after we close, message rather than wait until morning. Walk in without an appointment, call +66 81 718 9080, message WhatsApp or Line. If you would rather not move, ask for a doctor resort visit and we will come to you. For anything that cannot wait for a boat, see evacuation and hospital transfer.